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Definition of separatrix

separatrix

/ˌsɛp.əˈreɪ.trɪks/
sep · a · ra · trix
Plural:separatrices
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separatrix Lexical Profile

separatrix Game Scores & Validity

• noun

1

A boundary or curve in a mathematical phase space that separates regions with different dynamical behaviors or trajectories.

Example

"In the pendulum's phase portrait, the separatrix distinctively marks the boundary between oscillatory and rotational motion."

2

A printed mark or diagonal line, such as a slash or stroke, used to indicate a division or separation between items in typography or logic.

Example

"The editor instructed the typesetter to insert a separatrix between the closely spaced numerical figures to ensure clarity."

Synonyms
View all synonyms for separatrix

• Rhymes for separatrix

• Nearby Words

separatism
separatist
separator
separatrix
sepia
sepik
sepsis

Word Origin & Etymology

From Late Latin 'separatrix', the feminine form of 'separator', derived from the verb 'separare' (to pull apart).

Cite this Entry

Wordmom. (2026). Definition of Separatrix. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/separatrix
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